package org.webcat.electronicsubmissionplugin.utils;
// ///////////////////////////////////////////////////////
// Bare Bones Browser Launch //
// Version 3.1 (June 6, 2010) //
// By Dem Pilafian //
// Supports: //
// Mac OS X, GNU/Linux, Unix, Windows XP/Vista/7 //
// Example Usage: //
// String url = "http://www.centerkey.com/"; //
// BareBonesBrowserLaunch.openURL(url); //
// Public Domain Software -- Free to Use as You Like //
// ///////////////////////////////////////////////////////

import javax.swing.JOptionPane;
import java.util.Arrays;

/**
 * Not our code. taken from: http://www.centerkey.com/java/browser/
 *
 * Opens a given url string in the user's default browser.
 * @author Dem Pilafian
 */
public class BrowserLauncher {

    static final String[] browsers = {"google-chrome", "firefox", "opera",
        "epiphany", "konqueror", "conkeror", "midori", "kazehakase", "mozilla"};
    static final String errMsg = "Error attempting to launch web browser";

    public static void openURL(String url) {
        try { // attempt to use Desktop library from JDK 1.6+
            Class<?> d = Class.forName("java.awt.Desktop");
            d.getDeclaredMethod("browse", new Class[]{java.net.URI.class}).invoke(
                    d.getDeclaredMethod("getDesktop").invoke(null),
                    new Object[]{java.net.URI.create(url)});
            // above code mimicks: java.awt.Desktop.getDesktop().browse()
        } catch (Exception ignore) { // library not available or failed
            String osName = System.getProperty("os.name");
            try {
                if (osName.startsWith("Mac OS")) {
                    Class.forName("com.apple.eio.FileManager").getDeclaredMethod(
                            "openURL",
                            new Class[]{String.class}).invoke(null, new Object[]{url});
                } else if (osName.startsWith("Windows")) {
                    Runtime.getRuntime().exec(
                            "rundll32 url.dll,FileProtocolHandler " + url);
                } else { // assume Unix or Linux
                    String browser = null;
                    for (String b : browsers) {
                        if (browser == null
                                && Runtime.getRuntime().exec(new String[]{"which", b}).getInputStream().read() != -1) {
                            Runtime.getRuntime().exec(
                                    new String[]{browser = b, url});
                        }
                    }
                    if (browser == null) {
                        throw new Exception(Arrays.toString(browsers));
                    }
                }
            } catch (Exception e) {
                JOptionPane.showMessageDialog(
                        null,
                        errMsg + "\n" + e.toString());
            }
        }
    }
}
